XC6121C341ER-G

Supervisors Overview

The XC6121C341ER-G is a high-precision voltage detector with a watchdog timer function manufactured by Torex Semiconductor. It utilizes CMOS process technology to achieve low current consumption, with a typical operating current of 12 µA and static current of 5 µA. The device monitors a single voltage input with a threshold of 4.1V and provides an active-low reset signal via an open-drain or open-collector output. It features a typical reset timeout of 100 ms and operates within a supply voltage range of 1.0V to 6.0V. The component is housed in a compact 6-USP (1.8x2) surface-mount package and supports an industrial operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer function with built-in delay circuits, eliminating the need for external components for basic operation.
• Features a separate EN/ENB pin that allows independent control to enable or disable the watchdog function while maintaining voltage detection.
• Employs laser trimming technology to ensure high accuracy in voltage detection thresholds across the specified operating range.

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuitry
• Memory battery backup systems
• Power failure detection circuits

Supervisors Procurement Notes

Verify the specific threshold voltage suffix (341 indicates 4.1V) against system requirements. Confirm the package type matches the PCB footprint. Check RoHS compliance status if required by project specifications. Ensure the open-drain output configuration aligns with the target logic level interface.

Supervisors Selection Notes

Select this component when a dedicated watchdog timer is required alongside voltage supervision in a small form factor. The 6-USP package offers space savings compared to larger alternatives. Consider the 100ms typical timeout duration for compatibility with the target processor's clock speed and interrupt response times.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of voltage detectors. The XC6121 variant specifically combines voltage monitoring with a watchdog function. The series is designed for applications requiring precise power management and system reliability in portable and industrial electronics.

Supervisors FAQ

How is the watchdog function controlled?

The watchdog function can be independently enabled or disabled using the EN/ENB pin. Setting this pin to a specific logic level allows the voltage detector to operate while turning off the watchdog timer.

What is the output configuration of the reset signal?

The reset output is available as either an open-drain or open-collector type, which requires an external pull-up resistor to function correctly with the target logic circuit.